Solution Processing - Rodlike Polymers
Abstract:
The solution processing of polybenzoxazole PBO and polybenzthiozole PBT to form oriented solids is discussed. The rheological considerations important in solution processing are considered, with special emphasis on the dry-jet wet spinning process used to form fibers. Pertinent rheological time constants and orientation parameters are measured by cone-and-plate rheometry and parallel plate flow birefringence. Solution processing experiments to evaluate the proposed process models are presented, along with evaluation of the properties of the formed solid polymers.
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Collection: TR